using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Web;
using System.Web.Mvc;
using Kreta.BusinessLogic.HelperClasses;
using Kreta.BusinessLogic.HelperClasses.ImportCo;
using Kreta.BusinessLogic.Helpers.ImportExport;
using Kreta.BusinessLogic.Security;
using Kreta.Enums.ManualEnums;
using Kreta.Enums.ManualEnums.ImportExport;
using Kreta.Resources;
using Kreta.Web.Areas.ImportExport.Models.CommonModels;
using Kreta.Web.Areas.ImportExport.Models.TanulokElerhetosegiAdataikImportExport;
using Kreta.Web.Classes;
using Kreta.Web.Helpers;
using Kreta.Web.Models.EditorTemplates;
using Kreta.Web.Security;

namespace Kreta.Web.Areas.ImportExport.Controllers
{
    [MvcRoleClaimsAuthorize(true)]
    [MvcRolePackageAuthorize(TanevEnum.AktEsKovTanev, KretaClaimPackages.Adminisztrator.ClaimValue)]
    public class TanulokElerhetosegiAdataikImportExportController : BaseImportExportController
    {
        #region Fields

        private const string TovabbUrl = @"/Tanulo/Tanulo";

        #endregion Fields

        #region Properties

        public static string GridName => "TanulokElerhetosegiAdataikGrid";
        public static string GridRowTemplateName => "TanulokElerhetosegiAdataikGridRowTemplate";

        public static string TelefonszamGridName => "TelefonszamGrid";
        public static string TelefonszamGridRowTemplateName => "TelefonszamGridRowTemplate";

        public static string EmailGridName => "EmailGrid";
        public static string EmailGridRowTemplateName => "EmailGridRowTemplate";

        public static string JavascriptHelperClassName => "TanulokElerhetosegiAdataikImportExportHelper";

        public static string ConrtollerName => "TanulokElerhetosegiAdataikImportExport";

        #endregion Properties

        #region Constructors

        public TanulokElerhetosegiAdataikImportExportController(IUploadFileValidator uploadFileValidator)
        {
            UploadFileValidator = uploadFileValidator ?? throw new ArgumentNullException(nameof(uploadFileValidator));
        }

        #endregion Constructors

        public ActionResult Index()
        {
            var model = new TanulokElerhetosegiAdataikImportExportModel
            {
                MaxAllowedFileSizeInBytes = UploadFileValidator.Configuration.ImportMaxAllowedFileSizeInBytes,
                AllowedFileExtensions = UploadFileValidator.Configuration.ImportAllowedFileExtensions
            };

            return View(model);
        }

        #region Sablon

        public ActionResult DownloadTemplate()
        {
            MemoryStream memoryStream = new TanulokElerhetosegiAdataikImportExportHelper(ConnectionTypeExtensions.GetSessionConnectionType()).GetTemplate();

            return new FileStreamResult(memoryStream, Core.Constants.ContentTypes.Xlsx) { FileDownloadName = ImportExportTanulokElerhetosegiAdataikResource.ImportSablonFileName };
        }

        #endregion Sablon

        #region Export

        [HttpPost]
        [MvcValidateAjaxAntiForgeryToken]
        public string Export()
        {
            MemoryStream memoryStream = new TanulokElerhetosegiAdataikImportExportHelper(ConnectionTypeExtensions.GetSessionConnectionType()).GetExport();

            return GetExportFileString(memoryStream);
        }

        public string NemImportalhatoSorokExport()
        {
            MemoryStream memoryStream = new TanulokElerhetosegiAdataikImportExportHelper(ConnectionTypeExtensions.GetSessionConnectionType()).GetNemImportalhatoSorokExport();

            return GetExportFileString(memoryStream);
        }

        #endregion Export

        #region Import

        public JsonResult UploadFile(HttpPostedFileBase importFile, int importMuvelet)
        {
            UploadFileValidator.ValidateImportFile(importFile);

            var errorResult = new List<string>();
            Dictionary<int, string> importHeaderList = TanulokElerhetosegiAdataikImportExportHelper.ImportHeaderList;
            List<List<string>> importData = ImportExportHelper.GetImportDataFromExcel(importFile.InputStream, importHeaderList, out List<string> fileErrorResultList);
            errorResult.AddRange(fileErrorResultList);

            if (errorResult.Count > 0)
            {
                JsonResult errorJson = ThrowCustomError(errorResult);

                return errorJson;
            }

            new TanulokElerhetosegiAdataikImportExportHelper(ConnectionTypeExtensions.GetSessionConnectionType()).SetImportCo(importData, importMuvelet, ClaimData.IsSzakkepzoIntezmeny);

            return Json(null);
        }

        public ActionResult OpenImportPreviewPopup()
        {
            TanulokElerhetosegiAdataikImportCo importCo = new TanulokElerhetosegiAdataikImportExportHelper(ConnectionTypeExtensions.GetSessionConnectionType()).ImportCo;
            List<TanuloItemCo> coList = importCo.TanuloCoList;

            var importInfoModel = new TanulokElerhetosegiAdataikImportInfoModel
            {
                ImportInfoSummaryList = new ImportInfoSummaryListModel
                {
                    ImportInfoSummaryModelList = new List<ImportInfoSummaryModel>
                    {
                        GetTelefonImportInfoSummary(importCo, coList.Select(x => x.TelefonList.FirstOrDefault()).Where(x => x != null).ToList()),
                        GetEmailImportInfoSummary(importCo, coList.Select(x => x.EmailList.FirstOrDefault()).Where(x => x != null).ToList())
                    }
                },
                TelefonImportItemList = new TelefonImportItemListModel
                {
                    ImportItemModelList = GetTelefonImportItemModelList(importCo.TelefonTanuloImportJsonItemList, coList)
                },
                EmailImportItemList = new EmailImportItemListModel
                {
                    ImportItemModelList = GetEmailImportItemModelList(importCo.EmailTanuloImportJsonItemList, coList)
                },
                NemImportalhatoItemList = new TanulokElerhetosegiAdataikImportNemImportalhatoItemListModel
                {
                    NemImportalhatoItemModelList = GetNemImportalhatoItemModelList(importCo.NemImportalhatoItemList)
                }
            };

            var popUpModel = new PopUpModel(importInfoModel, ImportPreviewPopupName);
            popUpModel.AddCancelBtn(popUpModel, "KretaWindowHelper.destroyAllWindow");
            popUpModel.AddBtn(popUpModel, "ImportBtnOk", CommonResource.Importalas, $"{JavascriptHelperClassName}.import", "BtnOk", setDisabledAfterClick: true);
            popUpModel.AddBtn(popUpModel, "NemImportalhatoSorokExportBtnOk", ImportExportCommonResource.NemImportalhatoSorokExportalasa, $"{JavascriptHelperClassName}.nemImportalhatoSorokExport", "BtnOk");

            return PartialView(Constants.General.PopupView, popUpModel);
        }

        protected static ImportInfoSummaryModel GetTelefonImportInfoSummary(TanulokElerhetosegiAdataikImportCo importCo, List<TelefonItemCo> coList)
        {
            List<TelefonTanuloImportJsonItemCo> importJsonItemList = importCo.TelefonTanuloImportJsonItemList;
            int insertRowCount = importJsonItemList?.Count(x => x.Operation == (int)ImportItemOperationEnum.Insert) ?? 0;
            int updateRowCount = importJsonItemList?.Count(x => x.Operation == (int)ImportItemOperationEnum.Update) ?? 0;
            int deleteRowCount = importCo.ImportMuvelet == (int)ImportMuveletEnum.DeleteAndInsert ? coList.Count(x => x.Importalt) : 0;
            int unchangedRowCount = 0;

            switch (importCo.ImportMuvelet)
            {
                case (int)ImportMuveletEnum.DeleteAndInsert:
                    unchangedRowCount = coList.Count(x => !x.Importalt);
                    break;

                case (int)ImportMuveletEnum.Insert:
                    unchangedRowCount = coList.Count;
                    break;

                case (int)ImportMuveletEnum.InsertAndUpdate:
                    unchangedRowCount = coList.Count - updateRowCount;
                    break;
            }

            int invalidRowCount = importCo.NemImportalhatoItemList.Count;
            var importInfoSummary = new ImportInfoSummaryModel
            {
                ImportName = ImportExportTanulokElerhetosegiAdataikResource.Telefon,
                InsertRowCount = insertRowCount.ToString(),
                UpdateRowCount = updateRowCount.ToString(),
                DeleteRowCount = deleteRowCount.ToString(),
                UnchangedRowCount = unchangedRowCount.ToString(),
                InvalidRowCount = invalidRowCount.ToString()
            };

            return importInfoSummary;
        }

        protected static ImportInfoSummaryModel GetEmailImportInfoSummary(TanulokElerhetosegiAdataikImportCo importCo, List<EmailItemCo> coList)
        {
            List<EmailTanuloImportJsonItemCo> importJsonItemList = importCo.EmailTanuloImportJsonItemList;
            int insertRowCount = importJsonItemList?.Count(x => x.Operation == (int)ImportItemOperationEnum.Insert) ?? 0;
            int updateRowCount = importJsonItemList?.Count(x => x.Operation == (int)ImportItemOperationEnum.Update) ?? 0;
            int deleteRowCount = importCo.ImportMuvelet == (int)ImportMuveletEnum.DeleteAndInsert ? coList.Count(x => x.Importalt) : 0;
            int unchangedRowCount = 0;

            switch (importCo.ImportMuvelet)
            {
                case (int)ImportMuveletEnum.DeleteAndInsert:
                    unchangedRowCount = coList.Count(x => !x.Importalt);
                    break;

                case (int)ImportMuveletEnum.Insert:
                    unchangedRowCount = coList.Count;
                    break;

                case (int)ImportMuveletEnum.InsertAndUpdate:
                    unchangedRowCount = coList.Count - updateRowCount;
                    break;
            }

            int invalidRowCount = importCo.NemImportalhatoItemList.Count;
            var importInfoSummary = new ImportInfoSummaryModel
            {
                ImportName = ImportExportTanulokElerhetosegiAdataikResource.Email,
                InsertRowCount = insertRowCount.ToString(),
                UpdateRowCount = updateRowCount.ToString(),
                DeleteRowCount = deleteRowCount.ToString(),
                UnchangedRowCount = unchangedRowCount.ToString(),
                InvalidRowCount = invalidRowCount.ToString()
            };

            return importInfoSummary;
        }

        private List<TelefonImportItemModel> GetTelefonImportItemModelList(List<TelefonTanuloImportJsonItemCo> importJsonItemList, List<TanuloItemCo> tanuloItemCoList)
        {
            var importItemModelList = new List<TelefonImportItemModel>();
            if (importJsonItemList == null)
            {
                if (tanuloItemCoList.Count == 0)
                {
                    return importItemModelList;
                }

                importJsonItemList = new List<TelefonTanuloImportJsonItemCo>();
            }

            foreach (TelefonTanuloImportJsonItemCo importJsonItem in importJsonItemList)
            {
                var tanulo = tanuloItemCoList.FirstOrDefault(t => t.FelhasznaloId == importJsonItem.FelhasznaloId);
                importItemModelList.Add(new TelefonImportItemModel
                {
                    FelhasznaloElotag = tanulo?.FelhasznaloElotag ?? string.Empty,
                    FelhasznaloVezeteknev = tanulo?.FelhasznaloVezeteknev ?? string.Empty,
                    FelhasznaloKeresztnev = tanulo?.FelhasznaloKeresztnev ?? string.Empty,
                    Telefonszam = importJsonItem.Telefonszam ?? string.Empty,
                    IsAlapertelmezett = importJsonItem.IsAlapertelmezett == "T" ? Enum.GetName(typeof(IgenNemEnum), IgenNemEnum.Igen) : Enum.GetName(typeof(IgenNemEnum), IgenNemEnum.Nem),
                    TipusNev = importJsonItem.TipusNev ?? string.Empty,
                    Operation = importJsonItem.Operation
                });
            }

            foreach (TelefonItemCo co in tanuloItemCoList.Select(x => x.TelefonList.FirstOrDefault()).Where(x => x != null))
            {
                if (!importJsonItemList.Select(x => x.Id).Contains(co.Id))
                {
                    importItemModelList.Add(new TelefonImportItemModel
                    {
                        FelhasznaloElotag = co.FelhasznaloElotag ?? string.Empty,
                        FelhasznaloVezeteknev = co.FelhasznaloVezeteknev ?? string.Empty,
                        FelhasznaloKeresztnev = co.FelhasznaloKeresztnev ?? string.Empty,
                        Telefonszam = co.Telefonszam ?? string.Empty,
                        IsAlapertelmezett = co.IsAlapertelmezett == true ? Enum.GetName(typeof(IgenNemEnum), IgenNemEnum.Igen) : Enum.GetName(typeof(IgenNemEnum), IgenNemEnum.Nem),
                        TipusNev = co.TipusNev ?? string.Empty,
                        Operation = (int)ImportItemOperationEnum.Default
                    });
                }
            }

            return importItemModelList
                .OrderBy(x => x.FelhasznaloVezeteknev)
                .ThenBy(x => x.FelhasznaloKeresztnev)
                .ThenByDescending(x => x.OperationText).ToList();
        }

        private List<EmailImportItemModel> GetEmailImportItemModelList(List<EmailTanuloImportJsonItemCo> importJsonItemList, List<TanuloItemCo> tanuloItemCoList)
        {
            var importItemModelList = new List<EmailImportItemModel>();
            if (importJsonItemList == null)
            {
                if (tanuloItemCoList.Count == 0)
                {
                    return importItemModelList;
                }

                importJsonItemList = new List<EmailTanuloImportJsonItemCo>();
            }

            foreach (EmailTanuloImportJsonItemCo importJsonItem in importJsonItemList)
            {
                var tanulo = tanuloItemCoList.FirstOrDefault(t => t.FelhasznaloId == importJsonItem.FelhasznaloId);
                importItemModelList.Add(new EmailImportItemModel
                {
                    FelhasznaloElotag = tanulo?.FelhasznaloElotag ?? string.Empty,
                    FelhasznaloVezeteknev = tanulo?.FelhasznaloVezeteknev ?? string.Empty,
                    FelhasznaloKeresztnev = tanulo?.FelhasznaloKeresztnev ?? string.Empty,
                    EmailCim = importJsonItem.EmailCim ?? string.Empty,
                    IsAlapertelmezett = importJsonItem.IsAlapertelmezett == "T" ? Enum.GetName(typeof(IgenNemEnum), IgenNemEnum.Igen) : Enum.GetName(typeof(IgenNemEnum), IgenNemEnum.Nem),
                    TipusNev = importJsonItem.TipusNev ?? string.Empty,
                    Operation = importJsonItem.Operation
                });
            }

            foreach (EmailItemCo co in tanuloItemCoList.Select(x => x.EmailList.FirstOrDefault()).Where(x => x != null))
            {
                if (!importJsonItemList.Select(x => x.Id).Contains(co.Id))
                {
                    importItemModelList.Add(new EmailImportItemModel
                    {
                        FelhasznaloElotag = co.FelhasznaloElotag ?? string.Empty,
                        FelhasznaloVezeteknev = co.FelhasznaloVezeteknev ?? string.Empty,
                        FelhasznaloKeresztnev = co.FelhasznaloKeresztnev ?? string.Empty,
                        EmailCim = co.EmailCim ?? string.Empty,
                        IsAlapertelmezett = co.IsAlapertelmezett == true ? Enum.GetName(typeof(IgenNemEnum), IgenNemEnum.Igen) : Enum.GetName(typeof(IgenNemEnum), IgenNemEnum.Nem),
                        TipusNev = co.TipusNev ?? string.Empty,
                        Operation = (int)ImportItemOperationEnum.Default
                    });
                }
            }

            return importItemModelList
                .OrderBy(x => x.FelhasznaloVezeteknev)
                .ThenBy(x => x.FelhasznaloKeresztnev)
                .ThenByDescending(x => x.OperationText).ToList();
        }

        private List<TanulokElerhetosegiAdataikImportNemImportalhatoItemModel> GetNemImportalhatoItemModelList(List<TanulokElerhetosegiAdataikImportItemCo> nemImportalhatoItemList)
        {
            var nemImportalhatoItemModelList = new List<TanulokElerhetosegiAdataikImportNemImportalhatoItemModel>();
            foreach (TanulokElerhetosegiAdataikImportItemCo nemImportalhatoItem in nemImportalhatoItemList)
            {
                nemImportalhatoItemModelList.Add(new TanulokElerhetosegiAdataikImportNemImportalhatoItemModel
                {
                    TanuloNeveImportData = nemImportalhatoItem.TanuloNeveImportData,
                    TanuloOktatasiAzonositoImportData = nemImportalhatoItem.TanuloOktatasiAzonositoImportData,
                    TanuloTelefonszamImportData = nemImportalhatoItem.TanuloTelefonszamImportData,
                    TelefonszamAlapertelmezettImportData = nemImportalhatoItem.TelefonszamAlapertelmezettImportData,
                    TelefonszamTipusaImportData = nemImportalhatoItem.TelefonszamTipusaImportData,
                    TanuloEmailCimImportData = nemImportalhatoItem.TanuloEmailCimImportData,
                    EmailAlapertelmezettImportData = nemImportalhatoItem.EmailAlapertelmezettImportData,
                    EmailTipusImportData = nemImportalhatoItem.EmailTipusImportData,
                    ErrorList = string.Join(Environment.NewLine, nemImportalhatoItem.ErrorList)
                });
            }

            return nemImportalhatoItemModelList.OrderBy(x => x.TanuloNeveImportData).ToList();
        }

        public ActionResult Import()
        {
            if (ModelState.IsValid)
            {
                var tanulokElerhetosegiAdataikImportExportHelper = new TanulokElerhetosegiAdataikImportExportHelper(ConnectionTypeExtensions.GetSessionConnectionType());
                TanulokElerhetosegiAdataikImportCo importCo = tanulokElerhetosegiAdataikImportExportHelper.ImportCo;

                string tableNameList = "T_TELEFON_OSSZES,T_EMAIL_OSSZES";
                var alapertelmezettEmailFelhasznaloIds = importCo.EmailTanuloImportJsonItemList.Where(e => e.IsAlapertelmezett == "T").Select(e => e.FelhasznaloId);
                var alapertelmezettTelefonFelhasznaloIds = importCo.TelefonTanuloImportJsonItemList.Where(t => t.IsAlapertelmezett == "T").Select(t => t.FelhasznaloId);
                tanulokElerhetosegiAdataikImportExportHelper.Import(new { ImportJson = importCo }, importCo.ImportMuvelet, tableNameList, alapertelmezettEmailFelhasznaloIds, alapertelmezettTelefonFelhasznaloIds);

                return Json(new { tovabbUrl = TovabbUrl });
            }

            return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
        }

        #endregion Import
    }
}